Dyeing composition



UNITED STATES PATENT orrrcn.

WILLIAM A. AINSWORTH, OF GRAND RAPIDS, MICHIGAN, ASSIG-NOR OF ONE-HALFTO CAB/L N. MATHER, OF GRAND RAPIDS, MICHIGAN.

DYEING COMPOSITION.

Specificationof Letters Patent.

No Drawing; Application filed April 15, 1918, Serial No. 228,792.Renewed January 30, 1919. Serial No.

To all whom z't may concern:

Be it known that I. 'ILLIAM A. AmswoRTH. a citizen of the United Statesof America. residing at Grand Rapids, in the county of Kent and State ofMichigamhave invented certain new and useful Improvements in DyeingComposition; and I do hereby declare the following to be a full,

clear. and exact description of the invention,

such as will enable others skilled in the art to which it appertains tomake and use the as by boiling the yarn or fabric to' which the dye isapplied, or even by treatment with acids. The composition isparticularly effective when used in conjunction with my previousinvention on winding and dyeing machine. application for patent on whichwas made July 16. 1917. having Ser. No. 180,805. which invention isdirected to a means for dyeing yarn, thread, or similar fibrousmaterial.

For an understanding of the invention and the ingredients which enterinto the composition, reference may be had to the following descriptionin which the ingredients, the quantities used, and the manner ofincorporating them, is disclosed.

To produce substantially one gallon of the dyeing composition,three-eighths of an ounce of powdered dye of any preferred color isthoroughly mixed with five-eighths of a pint of. glycerin so that theglycerinis thoroughly impregnated with the particles of dye. This isthendilut d by theaddition of three-fourths of a gallon of denaturedalcohol. to which mixture substantially one and three-eighths pints ofwater may be added. In practice a larger quantity than this is usuallymade at one time andpfor eight gallons of the dye composition, threeounces of dye, five pints of glycerin, six gallons of denatured alcohol,and

eleven pints of water are used, this being in the same proportion asthat above outlined for the product-ion of onegallon of the dyecomposition.

A dye of this character, when thread, yarn or like fibrous material isbrought into contact with it, is absorbed instantly, and this withoutthe necessity of boiling or otherwise treating the material to make itabsorbent. As soon as it is absorbed it dries almost instantly, thealcohol evaporating with great rapidity, particularly when used andapplied to a single continuous length of yarn, thread, or the like as itis passing from one holder to another as outlined in my application forpatent previously noted. The alcohol and glycerin in conjunction withthe dye thoroughly dissolved in the same penetrates yarns and threads orlike fibrous materials instantly, the dye being carried entirely throughthe yarn, thread, or the like, while the volatile character of thealcohol permits the yarn or thread to dry almost instantly. This is afeature of great importance, particularly when "used in conposition. Thewater is not absolutely essential, but is of value in reducing the costof the composition as long as enough is not used to unduly dampen theyarn or like material.

I claim:

A composition of matter comprised of dye, glycerin, and alcohol insubstantially the following proportions: three ounces powdered dye,thoroughly incorporated with five pints of glycerinand then diluted withsix gallons of alcohol, substantially a described.

In testimony whereof I aflix my signature.

WILLIAM A. AINSWORTH.

by use I

